Plastic-cartridge-making machine.



S, H. PIERCE. PLASTIC CARTRIDGE MAKING MACHINE.

APPLICATION FILED JULYBO, 1912.

Patented Apr. 7, 19M

2 SHEETS-SHEET 1.

INVENTOR S H DIERCE VVITNESSES S. H. PIERCE. PLASTIC CARTRIDGE MAKING MACHINE.

APPLICATION FILED JULY 30, 1912.

Patented Apr. '7, 1914 2 SHEETS-311E111 2.

lNvENToR WPTNESSES SH. PIERCE SAMUEL HAMLIN PIERCE, 01 DESERONTO, ONTARIO, CANADA.

rmsrrc-canrarnen-maxme Macrame.

Specification of Letters Patent.

Application filed J uly 30, 1912. Serial No. 712,227.

Patented Apr. '7, 1914.

To all whom it may; concern:

Be it known that I, SAMUEL HAMLiN -P1ER0E, of the town of Deseronto, in the lowing is the specification.

My invention relates to improvements in plastic cartridge making machines and the object of the invention is to devise a simple machine for making cartridges from a plastic explosive compound, in which all the partsin excessive frictional contact with the explosive compound are, efl'ectually. kept cool, and by which the plastic explosive compound is formed into cylindrical sections and suitably wrapped, and it consists essentially of a receiving hopper, a water jacketed cylindrical compression chamber having a contracted exit nozzle at one end, a feed screw located in the hopper, a compressing screw located in the compression chamber, suitable driving means for the compressing and feed screws, watercooling channels passing through the compressing screw, a receiving table, means for severing the compressed explosive compound into cylindrical sections as it is fed on to the table,

means for imparting a step by step lateral movement operated at predetermined inter- Vals to the feed table, and means operatedby'gravit-y for wrapping each cartridge section in a suitable covering as it is delivered from the receiving table as hereinafter more particularly explained by the following specification. 4 1

Figure 1, is a general perspective view of my device. Fig. 2, is a sectional plan view of my device. Fig. 3, is a vertical longitudinal section through the center of Fig. 2. Fig. 4, is a cross section on line.my Fig. 2. Fig. 5, is an enlarged sectional detail of the compression chamberfiand compressing screw.

-ing brackets C and G secured respectively on the cross bars A and A of the standards to the standards A and A tending longitudinally through thesha-ft for with a water feed pi e B the .water passing out therefrom t rough the pipe B The compression chamber B is supported on a suitable standard B and is provided with a receiving orifice B provided with a surrounding annular internal threaded flange B". y a B is a receiving hopper provided with an exteriorly threaded lower end B threaded into the internal thread of the flange B to shoulder against the t-opofthe com ression chamber so that its lnterior perip ery is flush with the interior periphery of the compression chamber feed opening.

B is an exit nozzle provided with an internal threaded portion B 9 -(see Fig. 5) threaded on to the external thread of the annular flange B extending around the exit opening of the compression chamber.

A and A are bearing brackets extending from the supplemental standard A and provided with vertical end bearings A and A L C is a vertical shaft journaled in the bearings A and A and .provided .at its upper end with a securing. collar C bearing upon the top of the bearing A C is a feed screw suitably secured to the lower end of the shaft C. The feed screw C extends downwardly through the hopper B into the receiving orifice B of the compression chamber.

C isa horizontal shaft journaled in bear- A and A. y C- is a bevel gear mounted upon the inner end of the shaft C C is a bevel gear mounted on the vertical shaft 0 and meshing with the bevel gear G.

E is a compressing screwshaft journaled in brackets E and E secured respectively The shaft E is provided with channels E and E exa purpose which will hereinafter appear. The inner end of the shaft is provided with an annular flange E ,E is the compressing screw provided with a hollow point E having a reduced external threaded portion E (see Fig. 5) threaded in to the internal threaded end E" of the E. The compressing screwbody is also provided .withlongitudinal channels E and 9 E in alinement with the channels E and E of the compressing screw shaft thereby v A an forming continuations of the compressing screw channels leading into the hollow point E.

F is the main driving shaft supported in bearin s F and F secured to .the standards F and F are pulleys mounted on the driving shaft F an F is a peripheral cam drum also mounted on the driving shaft F.

supported in bearings F and F formed respectively in the main standards A and A. The slidable bar F is provided with a frictional roller F extending into the groove F The cam drum F is provided with acam Way F having an offset F".

F is a roller journaled on the slidable bar F The roller F extends into the cam way F.

H is a receiving water chamber preferably annular in form and provided with an inlet pipe H and an exit pipe H extending through the stufling box' H The pipe H extends axially through the stufling box H and is rovided with a curved end H extending into the passageway E (see Fig. 2).

H is a stufling box by which a water tight joint is formed between the compressing screw shaft E and the water chamher H.

I is a pinion mounted on the compressing screw shaft E and I, is a gear mounted on the drivin shaft F.

J is a tu ular shaft journaled at one end in the bearing J forming part of the standard A and at the opposite end in the standard J J is a shaft journaled at one end in a bearing formed beneath the standard A. The opposite end of the shaft extends through the hollow shaft J and is joui'naledat its extreme end in the bearing standard J K is a counter shaft mounted in bearing standards K and K K is a drum mounted upon the shaft J. K is a similar drum mounted upon the shaft K.

K is a belt of leather or any other suitable flexible material mounted upon the drums K and K".

K are a series of cross slats forming a receiving table. The slats are secured to the belt K and provided with opposing inclined faces K and K onto which the cartridge 2 is fed.

L is an idler pinion mounted upon the stud shaft L journaled in the bearing standard LF.

L is a gear mounted on theshaft K and meshing with the pinion L.

L is a car similar to L mounted upon the shaft 3 and meshing with the pinion L diametrically opposite t e gear L M is a notched wheel mounted on-the shaft K. The number of notches in the wheel M correspond tothe number of intervening spaces between the cross slats K.

M is an arm swung upon the shaftJ and rovided with a forked end M between which is journaled the roller M bearing upon the top of the notched wheel M.

M are tension springs connecting the drum K Q is a receiving table having an inclined portion Q, upon which the cylindrical sections of the cartridge roll 2 are delivered from the table formed by the slats K.

Q is a gear mounted on the shaft N and meshing with the pinion I.

' Having described the principal parts involved in my invention Iwill briefly describe the operation of the same. The explosive compound is fed in a loose state into the hopper. B from-which it is fed by the feed screw C through the opening B into the compression chamber B. The compressing screw shaft and feed shaft are revolved, the pressure screw E is thrown into gear by the cam F 6 operating the clutch F F forcing the material inthe direction of the arrow through the nozzle B compressing it intoia cylindrical form and depositing it between the pair of slats -K between the inclined faces K and K thereof as indicated in Fig.

4 of the drawings. The compressing screw and feed screw, it will be readily understood,

is driven from the shaft F through the pul-.

ley F belt F clutch pulley F clutch member F.,which are normally in engageforked end of the arm M with the collar ment and mounted on the shaft E thereby driving the shaft E. The feed screw is driven from the shaft E by the pulley F,

and idler pinion I. The table combining the slats K and belt K is intermittently driven from the shaft N by the finger N Immediately the clutch members F F are thrown out of gear slipping the compressing and feed screws the finger N is revolved by the shaft N engaging the lantern wheelN rotating the lantern wheel a definite space, turning the shaft J gear L idler pinion L and gear L to turn the shaft K and drum K mounted thereon and thereby driving the belt K so as to carry the slats K a predetermined distance. The knives P are-rotated by means of'the hollow shaft J driven by the gearsjf? and N from the shaft N. It will thus be seen that the compressing screw shaft is first stopped by the cam F operating the clutch F, F after the cylindrical-cartridge is fed on to the receiving table formed by the slats K.- The knives P are so timed as to then cut the cylindrical mass into sections of a definite length. The table operated by the finger N is then carried in the direction of arrow carrying the cartridge away from opposite the point of delivery of the nozzle B". The feed and compressing screw is then again thrown into gear and another cartridge is delivered on to the slats K. i The operation is continued, the cartridge being successively delivered on tothe inclined portion Q of the table Q down which they roll. Wrapping paper is previously placed onthe table Q, over which the cartridge passes, the paper adhering to the cartridge as it rolls overthe same and forming a wrapping or covering. This movement of the table comprising theslats K is controlled by the roller- M droppinginto a notch formed in the wheelM th ereby lfiinging the table to a definite position and centering the space between the slats K exactly opposite the center of the nozzle B. It will also be seen that the body ofthe compressing ,screw is kept cool by water pressure passing from the chamber H- throu h the channel E and channel E into t e hollow point of thescrew E the water returning through the passageway E and passageway E into the waste pipe H leading to a suitable ice, tank from which it may be returned to the water chamber. a

In this description I have disclosed a' very The s aft N is driven from the shaft F through the gear wheels I and Q simple form of machine in which the compressing and feed screws re-operatedintermittently and alternately with an intermittently movable receiving table, allowing for the severing of the cartridge lengths and removal to the wrapping table.

What I claim as my invention is.-

1. In a plastic cartridge maln'ng machine, the combination with the cylindrical compression chamber having a discharge nozzle and receiving hopper, and means for compressing the mass fed into the compression chamber, and forcing it through the delivery nozzle 1n cylindrical form, of a receiver comprising a pair of shafts, a drum mounted on .each shaft, abelt mounted on the drum, cross slats secured to the belt, gears connecting the shafts together, a pin shafts, and a suitable driving shaft carrying a finger co-acting with the p1n gear mounted on the aforesaid shaft, to turn the receiver a definite space on each revolution of the driving shaft, and means for severing thecartridge section from the cylindrical mass as it is delivered on to the cross slats of the receiver, as and for the purpose specified.

2. In a plastic cartridge making machine, the combination with means for compressing the plastic material into cylindrical form, of an endless receiving table provided with an endless series of cross slats suitably spaced apart, means for connecting the slats together, supporting shafts and drums for the slats, a notched wheel mounted on one of the supporting shafts, means for centering the. slat intervening space opposite the center of discharge comprising an arm swung upon a suitable bearing, a roller journaled onthe arm and spring tension means for holding the roller in contact with the notched wheel, as and for the purpose specified.

3. In a plasticcartridge making machine, the combination with the cylindrical compression chamber having a discharge nozzle and receiving opening, of a main shaft, a peripheral cam mounted thereon, a commounted thereon and operatingin the compression chamber, a clutch and clutch pulley mounted on the compressing shaft, a pulley mounted on the driving shaft, a belt connecting the pulley on the driving shaft with the clutch pulley on the compressing shaft, and means for operatin the clutch from the periipheral cam, as and or the purpose speclfie 'Witnesses B. BOYD, S.

SAMUEL HAMLIN PIERCE. 7

car on one of the pressing screw shaft, a compressing screw 

